Panotools::Script::Line::Variable - Panotools optimisation variables

One or more parameters for optimisation form a 'v' line

  Please note: the 'v'-line must come after the the 'i'-lines.
  Optimization variables are listed together with the image number
  starting at 0. There can be several v-lines.

  y0           Optimize yaw in image 0
  p1           Optimize pitch in image 1
  r2           Optimize roll in image 2
  v0           Optimize field of view in image 0
  a2           Optimize lens correction parameter 'a' in image 2
  b1
  c1
  d1
  e1
  g1
  t1

                   b and c can be equally optimized.
  X1           Optimize x-coordinate of image 1, only for PTStereo
  Y2           Optimize y-coordinate of image 2, only for PTStereo
  Z6           Optimize z-coordinate of image 6, only for PTStereo

       If a image has a parameter linked to another image only
       need to optimize the master.